You’re not bothering me :D No worries ^^ I think that the Hanayaka Series, have three games in the series. (But, I might be wrong that it’s a series, because I only played the first game ^^;;;;)
The first game is Hanayaka nari Waga Ichizoku
2nd game is Kinema Mosaic
and the 3rd game is Tasogare Polestar
and yes, all the games have Tadashi and Isami’s routes :)
I hope this helps! :) Happy playing~!