In this universe tho, they probably need special modification to the body or sum (kinda like sex pistol, maybe? That is if you know sex pistol )
There's an explanation on the other story of their friends in the first page.
The sequel one this: https://www.mangago.zone/read-manga/ookami_kun_wa_hanasanai/
oh god this comment really got me. well i didn't see worm lurking around. （￣へ￣）(≧∀≦)
whats sex pistol
it's bl manga.(づ￣ ³￣)づ
Gosh!! i havent read sex pistol for a long time now xD thank you for reminding me! Imma reread this again hehehe
Σ(っ°Д °;)っ omg i have to read this then!!! Thank youuuu !!!
Is there an explanation somewhere because I wanna understand how it works ╥﹏╥