魁！めたもるふぁっく学園！ ～黄金の恥丘とパンツの秘法～

Koichi, who loves taking photos, is unfortunately involved in a traffic accident on the day of his school's entrance ceremony.
When he wakes up in the hospital, he encounters a mysterious mushroom(?) that calls itself a yokai and gains the ability to transform.

After being discharged from the hospital, Koichi unknowingly gets appointed as the school photographer. He then establishes a photography club and begins capturing the school's events.

Thinking that simply taking photos would be boring, Koichi decides to use his transformation ability...
He attempts to take photos from places that would normally be impossible to access, but his transformations often wear off at the worst moments, leaving him to flee naked causing nothing but trouble.

Suspicious gazes watching his every move… and even assassins from the underground student council
Thus begins Koichi and the mischievous yokai’s ridiculous, tag-team school life!