Total Recommendations: 2
Both guys are crows and extremely powerful. They both fell inlove with the heroines (childhood friends!) a long time ago. The heroines are also 'brides' of the main guys. There are also events that are too similar, like the heroine's sealed memories, and both are a bit smutty.
ITAZURA OUJI chapter of gokujou twins VS. merry unbalance christmas Both guys are extremely rich, and both heroines reject all the expensive gifts that were forced on them. And there was also a party on both stories, where the heroines ran away and the guys chase after them.