There's Only One Truth, Yukinoshita

Sato Makoto transmigrated into this world,

and the first thing he saw was Yukinoshita, his 2D waifu from his previous life.

He thought his life would unfold like a youthful romantic comedy.

But what the heck is this eternal-grade-schooler doing here?

And where did you come from, Houtarou?

Sato Makoto: Damn it, even if the art style suddenly changes, I'm still going to show off my sweet romance!

One heroine: Yukinoshita Yukino

Also known as "Yukinoshita's Love Story: The Great Detective" or "The Faithful Dog Diary of Sato Makoto: The Great Detective"

Worlds currently combined: My Teen Romantic Comedy SNAFU, Detective Conan, The Kindaichi Case Files, Hyouka... others undecided