Kawaii Senpai no Kaigoroshikata
yandere (aka stockholm syndrome story)
Kalimeris Porno
Dear, Crazy Monster
Brothers becomes obsessed with his brother because he was neglected
Warehouse
They r so broken..... it... was still interesting tho...
Metronome
Ch. 27.5: A story about a 'cursed' girl, where any guy who confesses to her meets a tragic accident. However, one day, a (psychotic/ time-traveler/ delusional???) guy confesses his love to her, and claims that he will protect her from the dangers around her. It's a pity that this isn't updating anymore, it had a good concept too...
Hadashi De Bara Wo Fume
A poor girl who was desperate for money got bought to become a wife of a rich person. They fell in love, but soon entered a love triangle with the best friend of her husband. I really love the yandere character, and the twist at the end (even though I saw it as soon as I saw the coloured pages xD still good tho). I think that added a good level of drama aspect to the whole cinderella-esque story. I will say this tho, the main guy deserved the hardship tho, he provoked his best friend to fall for her and turn yandere (I'd say good job tho, that made it more interesting)
Aishite Kudasai, Sensei
A yandere confesses to his teacher/ childhood friend after his 8 year wait. Haha yandere~~~ but still tho, realistically, he could've waited til the end of highschool; I guess he just really impatient
Yankee and Yandere Don't Have Friends