Similar to もも子、かえるの歌がきこえるよ。

R-15 (novel series)

Absolute Duo

Otherside Picnic

Ebiten: Kōritsu Ebisugawa Kōkō Tenmonbu

Canary (video game)

By the Grace of the Gods

Koikimo

Chrome Shelled Regios

Student Council's Discretion

Deadman Wonderland

Muhyo & Roji's Bureau of Supernatural Investigation

My Unique Skill Makes Me OP Even at Level 1

Lemon Angel Project

Ippon Again!

Wandaba Style

Paranoia Agent

Mōryō no Hako

Batfink

Moegaku

Moekan