ACCA: 13-ku Kansatsu-ka - Regards

Characteristics:
1) The pairings are very clear (No involvement of third party)
2) Subtle (no 'I love You's, but more to 'I Would Die/Live For You')
3) Not focused on the pairings or even romance (pairings are mostly backdrops and the plot moves the anime)
4) YAOI/SHOUNEN-AI WILL NOT BE HERE

Special mentions (because they don't fit all the categories above): Sakamichi no Apollon, Vanitas no Carte

any cat appearance :3

part I: https://myanimelist.net/stacks/20806
part III: https://myanimelist.net/stacks/34839
part IV: https://myanimelist.net/stacks/35981
part V: https://myanimelist.net/stacks/36016

sometimes there may be several cats, but i only choose the first appearance or the pic that i think is beautiful more

nekomimi and accessories count, it's fun and there's more variety that way
　　　　　／＞　 フ/
　　　　　| 　.　 . |
　 　　　／` ミ＿xノ
　　 　 /　　　 　 |
　　　 /　 ヽ　　 ﾉ
　 　 │　　|　|　|
　／￣|　　 |　|　|
　| (￣ヽ＿ヽ)__)
　＼二つ

Anime series that covers all of its original source they're based on, with some notes.

Part 1: https://myanimelist.net/stacks/16812
Part 2: https://myanimelist.net/stacks/19939
Part 3: https://myanimelist.net/stacks/20122
Part 4: https://myanimelist.net/stacks/20258
Part 5: https://myanimelist.net/stacks/20709
Part 6: https://myanimelist.net/stacks/20940
Part 7: https://myanimelist.net/stacks/21451
Part 8: https://myanimelist.net/stacks/21523
Part 9: https://myanimelist.net/stacks/29835
Part 11: https://myanimelist.net/stacks/39870
Part 12: https://myanimelist.net/stacks/41719
Part 13: https://myanimelist.net/stacks/42460