 If you liked
Castle Mango
|
 ...then you might like
Hana wa Saku ka
|
Castle Mango and Hana wa Saku ka don't share the same story or anything totally similar in particular, but both have "oyaji" seme and young uke in a slow-paced relationship. Neither of them have smex or cliche scenes, it is shounen-ai and they both tell how two guys meet and start falling slowly in love. I recommend the other if you like any of them...