The book mentioned in the commentary is “Teikyuu Zako Inma no Shokushu ga Fukai nanode Kankaku Shadan Mahou o Tenkai Shimashita wa!!”, or “This Lowly Incubus Trap's Tentacles Felt Gross So I Cast Sensory Deprivation Magic On Myself!!”
I was wondering about those new arts(kankaku_shadan), "is it from that one manga I did read some time ago ?", and looks like it is(found out here on danbooru it is) For anyone interested for the manga codes : 386000 jpn , 398219 eng , 445997 eng + someone coloured it
