NADE NADE SKILL DE MARYOKU CHUUNYUU!!

Nade Nade Skill de Maryoku Chuunyuu!! summary:

Caressing the lewd monster girls’ XXX ♥
The deadpan-faced boy, Fushimi Mahiro.
Because of his facial expression, he's feared in his school, without a place to belong. One day, he gets transferred to another world by a squid he picked up!
The squid then turns into a beautiful girl, calling him "Demon Lord-sama", and gets attacked by a hero..?!
Scouting lewd monster girls & strengthening them to protect the demon castle!!
A story about a young boy and his interspecies harem looking for a place to belong starts here!!