Kazuki Amamiya 
Haibara’s Teenage New Game+ Volume 6 [EPUB ebook] 

A healthy dose of team spirit was just the medicine needed to clear the awkward air in Natsuki’s friend group. His second chance at youth is only looking up when Serika decides to get the band back together, with a familiar face as their new drummer. But a dark cloud appears on the horizon when whispers of Miori being a cheater begin to circulate through the school. To exacerbate the situation, Miori’s been absent, and no one can get in touch with her. Can Natsuki put a lid on the rumor and protect his childhood friend? Or will the truth shatter the bonds that he’s so desperately tried to mend?