pancake.dad

Have you read any works of Masao Sangatsu-sensei? All of her works have MCs with glasses and they are all wonderful works ╥﹏╥

Blue sky complex

Ijiwaru Shinai de
http://www.mangago.zone/read-manga/ijiwaru_shinai_de/
Komomi ja naka to
http://www.mangago.zone/read-manga/konomi_ja_naka_to/
Encirclement love
http://www.mangago.zone/read-manga/encirclement_love/
Rakka Ryuusui no Hoshi
http://www.mangago.zone/read-manga/rakka_ryuusui_no_hoshi/
Vassalord
http://www.mangago.zone/read-manga/vassalord/
Mujihi Na Otoko
http://www.mangago.zone/read-manga/mujihi_na_otoko/
I don’t dislike you
http://www.mangago.zone/read-manga/i_don_t_dislike_you/
Yondaime ooyamato tatsuyuki
http://www.mangago.zone/read-manga/yondaime_ooyamato_tatsuyuki/
Kokoro
http://www.mangago.zone/read-manga/kokoro_kanda_neko/
Doukyuusei
http://www.mangago.zone/read-manga/doukyuusei_nakamura_asumiko/
Sensei Nantes kirai desu
http://www.mangago.zone/read-manga/sensei_nante_kirai_desu/
Haikyuu dj (omegaverse)
http://www.mangago.zone/read-manga/haikyuu_dj_937_boost/

Also Shuchu ni otoshite iidesuka
http://www.mangago.zone/read-manga/shuchu_ni_otoshite_iidesuka/
Sensei kowai hanashi shumasenka
http://www.mangago.zone/read-manga/sensei_kowai_hanashi_shimasenka/
Koisuru boukun
http://www.mangago.zone/read-manga/koisuru_boukun/

http://www.mangago.zone/read-manga/kunkou_schale/

http://www.mangago.zone/read-manga/furete_aishite_dakishimete/

http://www.mangago.zone/read-manga/koi_ga_ochitara/ not a boy but a daddy

http://www.mangago.zone/read-manga/hina_wa_mitsuiro_no_koi_ni_torawareru/

http://www.mangago.zone/read-manga/kuchizuke_wa_uso_no_aji/

http://www.mangago.zone/read-manga/tadoru_yubi/

http://www.mangago.zone/read-manga/zantei_boyfriend/

http://www.mangago.zone/read-manga/suki_tte_iu_na/

http://www.mangago.zone/read-manga/hito_wa_sore_o_koi_to_yobu/

http://www.mangago.zone/read-manga/homunculus/
mystery yes. u will definetely think. likeable nahh, memorable yea. absurdity: tons but not humor, more like irony. romance nah,but there is a ship i guess:'). seinen.
http://www.mangago.zone/read-manga/monster/ really good mystery. u will think a lot(morals). the main chara is likeable the vilain is memorable. there is suspense here but the story is slow paced. romance nah, there is a ship(??i never thought about it). seinen.

villain*

Monster or Death Parade. Death Parade is an anime-only though, but it fit your description so well.