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Soshiro Yonaga is a first year member of Quartz with Kisa. He is her childhood friend, and is happy to see her again at Univeil after he had moved away.

Soshiro’s corresponding stat is Insight, which is increased by choosing Study for your lessons. The goal is to get your Insight stat up to the maximum amount of 30 by around early December depending on the random (?) bonus increases. You don’t need to be a “jack of all trades” and level up all of your stats.

If you don’t want to follow this guide exactly, some general tips would be to A) wait until your stamina gets down to at least 30/100 before choosing to rest, which restores 70 stamina, and B) don’t rest on weekends because it wastes your chances to interact with classmates. Weekend interactions cost 0 stamina.

There are 5 performances over the course of the school year. I believe you need to achieve SS in every performance rhythm game before the final performance. I think you can skip the practice rhythm games in the weeks before performances, although I’d recommend you complete them to hear the great music and see how the rhythm will go for the actual performance.

I obtained both the good and best endings in the same playthrough (without reloading saves) using these choices.

Newcomer Performance

April:

• April 5 (Sun.):
  • “How are roles decided?”
  • “How should we train?”
  • “No questions.” (Go ahead and choose this after your first playthrough.)
• April 6: Run
• April 7: Study
• April 8: Voice
• April 9: Agility
• April 10: Develop
• April 11 (Sat.): (recommend saving here before going out; load this save to start another playthrough and save a little time)
  • Soshiro: “Getting by somehow”
• April 12 (Sun.): Soshiro
  • “Step back and talk to Sou”
• April 13: Act
• April 14-17: Study
• April 18 (Sat.): Soshiro
  • Affection Event 1: “I’ve got time.”
• April 19 (Sun.): Soshiro
• April 20: Rest
• April 21-24: Study
• April 25 (Sat.): Soshiro
• April 26 (Sun.): Kyoji Otori

• April 27: Rest
  • “I can manage on my own.”
  • “See how Sou is doing”
• April 28-30: Study

May:

• May 1: Study
• May 2-3 (Sat.-Sun.): Soshiro
• May 4: Study
• May 5: Study
  • “That might be true.”
• May 6-8: Study
• May 9-10 (Sat.-Sun.): Soshiro
• May 11: Rest
  • “Kokuto Neji”
• May 12-14: Study
• May 15: Study
  • “Help him”
• May 16 (Sat.): Soshiro
  • “Like the ones here?”
• May 17 (Sun.): Shuri Chuza
  • “Happy”

• May 18: Study
• May 19: Rest
• May 20-22: Study
• May 23-24 (Sat.-Sun.): Soshiro
• May 25: Study
• May 26: Study
  • “Gaze at the king”
• May 27-28: Study
• May 29: Study
  • “Go see Sou”
• May 30 (Sat.): Newcomer Performance
  • “Search training rooms”
  • “Search the classrooms”
  • “Search the terrace”
  • “Yell at him”
  • “Give him a hint”

Summer Performance:

• May 31 (Sun.): Soshiro

June:

• June 1-5: Study
• June 6 (Sat.): Soshiro
  • Affection Event 2: “Looking for you”
  • “Ask what’s wrong”
• June 7 (Sun.): Soshiro
• June 8: Rest
• June 9-12: Study
• June 13-14 (Sat.-Sun.): Soshiro
• June 15-19: Study
• June 20-21 (Sat.-Sun.): Soshiro
• June 22: Rest
• June 23-26: Study
• June 27 (Sat.): Shuri Chuza
  • “Please teach me.”

• June 28 (Sun.): Soshiro
• June 29: Study
• June 30: Rest

July:

• July 1-2: Study
• July 3: Study
  • “It can’t be helped.”
• July 4 (Sat.): Soshiro
• July 5 (Sun.): Ataru Kasai

• July 6: Study
  • “Do you really?”
• July 7-8: Study
• July 9: Study
  • “Soshiro Yonaga”
• July 10: Study
• July 11-12 (Sat.-Sun.): Soshiro
• July 13: Rest
  • “I can’t forgive Louis.”
  • “I can win the award.”
• July 14-17: Study
• July 18 (Sat.): Soshiro
• July 19 (Sun.): Rokuro Enishi

• July 20-23: Study
• July 24: Study
  • “It’s me.”
  • “Go see Sou”
• July 25 (Sat.): Summer Performance
  • “I want to be your vessel.”
  • “I’m going to fulfill my role.”

Summer Vacation:

• July 26 (Sun.): Soshiro
• July 27: Study
• July 28: Ataru Kasai
  • “Hand it over”

• July 29: Study
• July 30: Soshiro
• July 31: Study

August:

• August 1 (Sat.): Ataru Kasai

• August 2 (Sun.): Mare Oshinari

• August 3: Study
• August 4: Soshiro
  • Affection Event 3: “Dance with him”
  • “Listen to him”
• August 5: Study
• August 6: Soshiro
  • “Leave him alone”
• August 7: Study
• August 8 (Sat.): Mare Oshinari
  • “Kasai”

• August 9 (Sun.): Kiito Minorikawa

• August 10: Rest
• August 11: “I want to be a Jeanne.”
• August 12: Study
• August 13: Study
  • “Look for Suzu and Sou”
  • “Go back to the hotel”
• August 14: Study
  • “Soshiro Yonaga”
  • “Want to try singing?”
• August 15 (Sat.): “Be loud”
  • “A sporty guy”
• August 16 (Sun.): Study
  • “Watch Soshiro”
  • “Go to the hot spring”
  • “I’ll get out first.”
  • “Soshiro Yonaga”
• August 17: Study
• August 18: Kiito Minorikawa
  • “Aren’t you busy?”

• August 19: Study
• August 20: Mare Oshinari

• August 21: Study
• August 22 (Sat.): Soshiro
• August 23 (Sun.): Soshiro
  • “Chili shrimp”
• August 24: Study
• August 25: Rokuro Enishi
  • “He seems hands-off.”

• August 26: Study
• August 27: Ataru Kasai

• August 28: Rest
• August 29 (Sat.): Kiyoharu Sugachi

• August 30 (Sun.): Soshiro
• August 31: Study

Autumn Performance:

September:

• September 1-3: Study
• September 4: Study
  • “It’s not possible to win.”
• September 5 (Sat.): Ataru Kasai
  • “Are you sure you can?”
  • “She should sound innocent.”

• September 6 (Sun.): Mare Oshinari
  • “Both are fun.”

• September 7: Rest
• September 8-11: Study
• September 12 (Sat.): Mare Oshinari

• September 13 (Sun.): Soshiro
  • “Leave him alone”
• September 14-18: Study
• September 19 (Sat.): Ataru Kasai

• September 20 (Sun.): Kazuya Tagane

• September 21: Rest
• September 22-24: Study
• September 25: Study
  • “You can do it, Sou.”
• September 26-27 (Sat.-Sun.): Soshiro
• September 28: Rest
• September 29-30: Study

October:

• October 1-2: Study
• October 3 (Sat.): Soshiro
• October 4 (Sun.): Ataru Kasai

• October 5-8: Study
• October 9: Study
  • “A young pair would fit.”
• October 10-11 (Sat.-Sun.): Soshiro
• October 12: Rest
• October 13-16: Study
• October 17-18 (Sat.-Sun.): Soshiro
• October 19: Study
  • “Should we keep going?”
  • “Someone to excite him”
  • “I want your help.”
• October 20: Rest
• October 21: Study
• October 22: Study
  • “Belittle Mary”
• October 23: Study
  • “Tried to hurt you”
  • “Go eat Sou”
• October 24 (Sat.): Autumn Performance
  • “Erase Tsuki”
  • “You’ll be interested.”
  • “Run away”
  • “Do whatever you like.”
  • “It’s up to you now, Sou!”

Winter Performance:

• October 25 (Sun.): Soshiro
• October 26-29: Study
• October 30: Study
  • “Chase after him”
• October 31 (Sat.): Soshiro
  • Affection Event 4: “You did help me.”

November:

• November 1 (Sun.): Soshiro
• November 2-6: Study
• November 7 (Sat.): Soshiro
• November 8 (Sun.): Soshiro
  • “I doubt I can do that yet.”
• November 9: Rest
  • “Can I think about it?”
• November 10: Study
• November 11: Study
  • “Take his hand”
  • “I won’t think about it.”
• November 12-13: Study
• November 14 (Sat.): Soshiro
• November 15 (Sun.): Soshiro
  • “I’ll go after Shirota.”
• November 16: Rest
• November 17: Study
• November 18: Study
  • “I’ve been embarrassed, too.”
• November 19-20: Study
• November 21-22 (Sat.-Sun.): Soshiro
• November 23: Study
  • “Leave him alone”
• November 24: Study
• November 25: Study
  • “Your range is wider now.”
• November 26-27: Study
• November 28 (Sat.): Soshiro
• November 29 (Sun.): Soshiro
  • Affection Event 5: “It was special for me, too.”
• November 30: Rest

December:

Ideally your Insight stat should be maxed out at 30 after the first week of December or so (depending on the stat bonuses you’ve received). After that’s maxed out, go ahead and choose another class (stats don’t carry over to the next playthrough but you can still earn stat trophies).

• December 1: Study
• December 2: Study
  • “Be friendly”
• December 3-4: Study
• December 5 (Sat.): Mare Oshinari
  • “Sure, okay.”
  • “Soshiro Yonaga”

• December 6 (Sun.): Soshiro
  • “I want you to try.”
• December 7: Study
• December 8: Rest
• December 9: Study
  • “Let’s rehearse together.”
• December 10-11: Study
• December 12 (Sat.): Soshiro
• December 13 (Sun.): Ataru Kasai
  • “So what’s the plan?”
  • “Make Kasai shine”
• December 14-15: Voice (if Insight is already maxed out at level 30)
• December 16: Voice
  • “Let’s rehearse together.”
• December 17-18: Voice
• December 19-20 (Sat.-Sun.): Soshiro
• December 21: Rest
• December 22: Agility
  • “There’s nothing I can do.”
• December 23: Agility
  • “Think about Sou”
  • “Act as a woman”
• December 24: Winter Performance
  • “Treat them like a friend”

Univeil Performance:

• December 25
  • “By myself” -> to the “special route” (after completing the six love interests’ routes; create save here before making this decision)
  • “With Soshiro” -> to Soshiro
    • “I want to stand next to you.”
• December 26 (Sat.): —-
• December 27 (Sun.): Soshiro
• December 28: Act
  • “Were you worried?”
• December 29: Act
  • “I think Valentine’s Day?”
• December 30: Act
• December 31: Act
  • “Sure, let’s go.”

January:

• January 1: —-
• January 2 (Sat.): Soshiro
• January 3 (Sun.): —-
• January 4: Run
  • “I’ll do it.”
  • “I’m sorry.”
• January 5-7: Run
• January 8: Run
  • “Maybe high school”
• January 9-10 (Sat.-Sun.): Soshiro
• January 11: Rest
• January 12-14: Voice
• January 15: Voice
  • “That’s not true!”
• January 16 (Sat.): Neji
• January 17 (Sun.): Soshiro
  • “Talk to him”
• January 18: Agility
  • “…It’s been hard.”
• January 19: Rest
  • “Thank you so much.”
  • “Let’s do our best together.”
• January 20-22: Agility
• January 23-24 (Sat.-Sun.): Soshiro
• January 25: Develop
  • “Sou isn’t alone.”
• January 26-29: Develop
• January 30 (Sat.): Soshiro
  • “Ask him about Momonashi.”
• January 31 (Sun.): Soshiro
  • “Want to eat together?”
  • “You’ve stood with me.”

February:

• February 1: Rest
• February 2-5: Act
• February 6 (Sat.): Soshiro
• February 7 (Sun.): Kai
• February 8: Run
  • “That’s not right.”
• February 9-12: Run
• February 13 (Sat.): —-
• February 14 (Sun.): “Make something”
  • “I love you.”
• February 15: Rest
• February 16-19: Voice
• February 20-21 (Sat.-Sun.): Soshiro
• February 22: Rest
• February 23: Agility
• February 24: Agility
  • “Go ask Tanakamigi.”
  • “I feel so safe.”
  • “I want you to stay here.”
• February 25-26: Agility
• February 27 (Sat.): Univeil Performance
  • “Tell me how you feel.”
• March 6 (Sat.):
  • Kai
  • Neji
  • Shirota
  • Suzu
  • Fumi
  • Shuri Chuza
  • “It was a lot of trouble.”
  • “I love that part of you.”

Other Walkthroughs: