Hatoful Boyfriend: Shuu (The Happy Couple)

Endings 9 and 10: Ugh, another bird with an extended ending. For the extended, you want to take math as your elective. You can choose either other class if you need to unlock the other. (Personally I think these endings should stack but you need to do it twice for each bird to get them all).

[04/11] Join the infirmary staff. (0:00)
[04/12] Math class for True Ending (#10)/Either other class for Normal Ending (#9)
Continue to take your chosen class every time (0:17)
[04/15] Neaten the desk. (1:50)
[04/21] Talk to Kazuaki. (6:02)
[05/21] Go to the first-aid tent. (8:45)
[06/22] Go to the infirmary and Hear your voice. (10:28)
[07/07] /”Rule the world from the shadows./” and /”No thank you./” (12:24)
[07/13] /”I was in my classroom./” (15:00)
[07/20] Missing students (16:50)
[07/24] Forget it. (20:32)
[08/06] Invite Shuu. (20:52)
[08/14] Ask what he’s doing. (23:31)
[08/30] /”Return to my glorious abode./” (25:20)
[09/25] Invite him to lunch. (28:35)
[10/07] Side with Shuu. (30:58)
[11/10] /”Like you, sir./” (32:36)
[01/01] /”Fulfillment in conquest./” (35:24)

Credit goes to Cute Spidergirl for her guide on Steam.
http://steamcommunity.com/sharedfiles/filedetails/?id310014604

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