Souboutei Kowasubeshi - Vol. 4 Ch. 30 - It Is Not A Psychic Phenomenon

[MangaDex]

 

[ZeeTee]

Called it, aliens.

 

[IcyTurtle]

Really interesting manga, it seem to be trying to invade earth but unable to take physical form.

 

[XL]

Grandpa's a jerk incest daughter loving weirdo!