Yaoi with yandere ML

I'm looking for something like Ibara no Naka no Hana, where ML is a yandere—not the weak possessive type, but a real manipulative yandere. Even better if, even until the end of the story, the MC never learns about the seme's true nature. It's fine if the MC is sort of suspicious of the ML and finds out a little bit, but it's just the tip of the iceberg—white lies to hide even bigger lies. PLEASE, NO HAREM OR LOVE TRIANGLE. I HATE THEM.

Straight romance is fine too. I just want to read some manipulative obsessed ML T__T