Boyish as in lacking of feminine characteristic (phyisically and/or mentally) and sometimes can be too innocent/kiddish, doesn't neccessarily have to crossdress or as physically strong as a man or anything. Like she is usually mistaken for a young/cute boy, but not to the point you think the author draw her with a male body in mind (like Never Give Up, Vanilla Ice, or Ai Ore!). NO girly/shota/indesicive male lead. I can swallow any genre except for yaoi, shounen ai and harem. Oh, and no one-shots or rushed ending/hiatus please~

Example:
Tokyo Crazy Paradise
Tsubasa o Motsu Mono
Immortal Rain
Power!!
Ingenuo
Hana Kimi
Owaru Heart Janee
Pii Natsu ga Ippai
Oresama Teacher
Beauty is the Beast
Koukou Debut maybe
Kaze Hikaru... not technically short-haired but still has men hairstyle (in Edo period)
I Love Her
Akuma no Ororon

Thank you for your recommendation 🙂 [m]

DONDAKEE!!

lol, Ouran Koukou Host Bu

Himitsu no ai-chan

Misupuri!
Kaoru-kun to Hana no Mori

@yanderes: completed that one, it fits perfectly thanks for the heads up
@Breizh: have been putting this one on-hold since the update is slow, but if I remember right she's mostly in her girly form (with girly clothes and wig)?
@Yurica-chan: I read them based on your recommendation but I think I'm too old for these kind of shoujo manga haha, thanks for your recommendation tho

DONDAKEE!!

Your description is very much alike to my favorite kinds of manga so, here ya go:
Basara
Savage Garden
Teppen!
Hana no Kishi
Houou Gakuen Misoragumi
Chang Ge Xing *
Tomo-chan wa Onnanoko! *
Saver
W Juliet
Teppuu
I-Revo
Aoharu x Kikanjuu *
Sayonara Football
Onnanoko ga Shinu Hanashi
Conflict Lover

• Unfinished but has plenty of chapters

Seishun Away
Obaka-chan, Koikatariki
Idol Paradise
Biyaku Café