 If you liked
Koukou Debut
|
 ...then you might like
"Kare" First Love
|
both the series are similar in the relationship development aspect because they show how couples go through the ups and downs of their relationship
also, they both revolve around some very realistic situations (i.e. dating, fashion etc.) that can be compared to the life of an average teenager (both having the slice of life genre)
they both have good romance storylines and are must-reads