Formal Invitation [あまもりすぽっと (あまもる)] フォーマル淫靡テーション (ブルーアーカイブ) [DL版]

(COMIC1☆8) [Brain Dead (Eiji)] Kujou Senpai no Osasoi wa Kotowarenai! | I Can't Refuse An Invitation From Kujou Senpai (To LOVE-Ru Darkness) [English] [Doujins.com]

(C73) [ORANGE SOFT (Aru Ra Une)] Aruji no Seikatsu Subete wo Support Suru Formal na Shugosha (Hayate no Gotoku!)

[Yukiusagi.] Kami-sama no Osasoi -after- | God's Invitation (COMIC Unreal 2018-02 Vol. 71) [English] [Zero Translations] [Digital]

[Hatakeyama Tohya] Toshiue Invitation | 年上美淫女的邀請函 [Chinese]

(C91) [G-complex (YUI_7)] Shiori no Inai Heya -Invitation- | A Room Without Shiori Invitation [English] =TV & Yuri-ism=

Formal Meeting for Engagement

[invitation (Maatan)] Onii-chan ni Imouto ga (Seiteki ni) Taberarechatta Hanashi 4 [Digital]

BC Strike! Mode:formal

[invitation (Maatan)] Onii-chan ni Imouto ga (Seiteki ni) Taberarechatta Hanashi 5 [Digital]

(C75) [ORANGE SOFT (Aru Ra Une)] Aruji no Seikatsu Subete wo Support Suru Formal na Shugosha 2 (Hayate no Gotoku! [Hayate the Combat Butler!])