Gwahoheub

Animated by the same Korean animation company ABJ Company who also animated Hyperventilation and Ubelievable Space Love. Both of these works were made by Bboong bbang kkyu, both korean manhwa series. If you're looking for spicy, fresh storylines, and beautiful, yet simple character designs, these are for you! 

These are both sweet and meaningful BL relationships. They had me crying after watching them (c" ತ,_ತ) 

Animated by the same studio (and it is beautiful). Both have the same ethereal feeling, with surpassed love. Unbelievable Space Love has a bittersweet and dubious ending, while on the otherhand Hyperventilation has a clearly positive ending. Oh yeah, and Hyperventilation is sexually explict.