Ore to Mou Ichido, Hatsukoi - Vol. 1 Ch. 2

[MangaDex]

 

[Multitules]

It feels like the true ML is the scammer guy, though I wonder why no one questioned him further about his identity ....the only other strong contender is the model guy I think. And even then, it could have been one sided. The other two don't feel like they're in love with her, with the fiancee being an obvious political thing (as of now).