Ex: Asagao to Kase-san.

No tragedy or excessive drama please.

Thx in advance. 🙂

Oh & this is just a minor thing but I would prefer if both characters are shy or at least not pushy. I just find it cuter.

Kimi Koi Limit - One girl is "boyish" in appearence. Kind of melodramatic story, not much innocence.

Shitsurakuen - MC is boyish in nature, series is dismissed as chauvinistic during the buildup. Harem series so not all love interests are shy.

Flower Flower - MC is a princess that is mistaken for a prince, "boyish" looks. Love interest is a violent snob.

Blue Friend - Other female lead is boyish for being a star athlete, very melodramatic story with attempted suicide.

14 sai no koi is not yuri, but I consider Kase-san to be the yuri version of it. Lots of blushing and shyness. It's by Mizutani Fuka who did these yuri titles:

Lonely wolf lonely sheep - female lead is tall and rides a motorcycle, perceived as boyish but is self-conscious and shy. Melodramatic story with self-harm.

Like a Cinderella - short hair, wears casual clothes a lot, very shy. Cute stories with no drama.