Responses
I agree with the first part of your comment I too would love a sequel to the heart strings story.
If you read twins labyrinth you will get the answer to your question regarding glasses guy
No that is Rin Hayasaka.
I mean Eto Tetsuki the guy in chapter 3, who give Yuki the money and wants him to break up with Sasaki.
I wish there was a continued story about Yuki and Sasaki, when Sasaki has become the yakuza leader.
And the guy with glasses, the one who wanted Yuki and Sasaki to break up, does he have a story.