 If you liked
Sono Te Wo Dokero
|
 ...then you might like
Komatta Toki ni wa Hoshi ni Kike
|
The relationship Kotarou and Tatsuki have reminds me of the relationship Takara and Kiyomine have. They argue a lot and get into a lot of trouble together - but they deeply care about each other.
Also do Kotarou and Takara have - as well as Tatsuki and Kiyomine - character traits that are alike.