"Super Rich" isn't about both of them, nor a BL series. But both of them played here and still interact a lot with each other in this new drama.
I haven't watch it myself, but seeing the both of them in one drama again is enough of a reason to start watching this hahaha XD

If I can put it simply, its like seeing a pink and blue drama.
while 30-sai more of a fluffy and bright drama, Utsukare is a deep blue ocean, longing of a boy who see everything as dull through his camera lens. Until a certain person came, the most beautiful person he met. both wrapped in a nice light story ^^
Both drama character got a secret crush on the other before the other party realize.
Its different, yet, they just remind me of each other..
I enjoy both of them so much, so maybe you'll like them too ^^ ?