i think this is from the manga.. Houzuki-san Chi no Aneki

I've read the manga. Probably the only manga that gave me an older sister fetish.

Neither said:
Probably the only manga that gave me an older sister fetish.

Older sister fetish... People who have that obviously never had an older sister.

Soljashy said:
Older sister fetish... People who have that obviously never had an older sister.

that's the truth,same as the so called little sister complex,my 17 years life living in hell