The ending song for the upcoming anime The Perfect Insider was revealed in the show’s third promotional video that was released last Friday. The anime series is adapted from Hiroshi Morinovel titled Subete ga F ni Naru (Everything Becomes F) which is also known as The Perfect Insider.
The Perfect Insider Plot:
The story of the original Subete ga F ni Naru novel revolves around Sōhei Saikawa, a member of the Saikawa Research Lab. He goes on a vacation held by the lab, and Moe Nishinosono, the daughter of his mentor, joins the group on their vacation despite not being a part of the lab. There, the two end up finding a corpse. The two work together to solve the mysteries of what becomes a serial murder case.

Code name: Yu Alexius is an ambiguous entity who loves to talk about anime and Chinese animation in general. An insatiable soul from the Pearl of the Orient, a frustrated writer and a Houtarou Oreki wanna-be. He is a piece of a lunatic and everything crazy.