Identify 2D Game with a Tomboy Female who (iirc) falls in love with Protag

[Parzalai]

I remember it being set in a school setting among who I believe are siblings, and MC doesn't care about her much until later down the story when they fuck. the (maybe) sister is a tomboy, short hair.

They go to school together, so on. Title is literally at the tip of my tongue lol.

Any help appreciated

 

[forgetmaster]

I remember it being set in a school setting among who I believe are siblings, and MC doesn't care about her much until later down the story when they fuck. the (maybe) sister is a tomboy, short hair.

They go to school together, so on. Title is literally at the tip of my tongue lol.

Any help appreciated

That sounds interesting, following