Younger Than You Are (1); Otoyan and others

Natsuki, Syo, Otoya, Tokiya, Hayato, and Cecil are small children under the supervision of Quartet Night, Hijirikawa Masato, and Jinguji Ren.

Reiji Kotobuki of Quartet Night thought that simulating this as if they were their own children. Everyone was in agreement.

This is all wholesome, heart warming content. A pairing is contained in this book; Jinguji Ren and Masato Hijirikawa.