Daichi Tamanashi, a.k.a Mr. Harmless, is a super-average boy living a super-average life. He's so average that no one around him seems to even care he exists! However, he's a secret social media star with an account that has over 3,000 followers!

Included one-shots:

Volume 2: Haru yo, Koi!: Fuyu-hen, Haru-hen

Volume 3: Gachipin.

Volume 4: Gesu no Ongaeshi