This story is "fully voiced" in the game, whatever that means! Perhaps we should check it out!
Repayment Festival is approaching, and every unit is engaged in preparations. As third years, Chiaki and Kanata have taken a back seat to let their kouhai in Ryuseitai take charge. However, when Eichi summons the two of them, it's revealed that he hasn't received their application for Repayment Festival.★
Climax (クライマツクス, kuraimatsukusu) is an event story released on Feb 28th 2017. It could be obtained through point rewards during Baton Pass! Repayment Festival of Tears and Bonds event and is free to read on Basic in ! mode. The song Unlimited☆Power!!!!! is associated with this story.