Sister Leticia: The First Mission!

The publisher declares adult content on Steam. Your mature-content setting is covering the art.

Développeur: Cyatt Cafe
Éditeur: Mango Party
Sortie: Sep 15, 2026
Steam reviews: 80% of players recommend it, from 128 reviews — Steam calls that “Mostly Positive”
Mots-clés: ActionAdventure

Sous Linux, sur Steam Deck et Steam Machine

Deck : JouableSteam Machine : JouableCompatible SteamOS

Valve le classe Jouable sur Steam Deck. Valve le classe Jouable sur Steam Machine. Valve l’indique comme Compatible SteamOS.

Classement Deck : Valve · Classements Steam Machine, Steam Frame et SteamOS : Valve · Comparer 2 053 jeux · Tous les jeux que Valve a classés pour Steam Machine

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Where to buy

Steam

Buy on Steam

Compare elsewhere:GOG ↗Epic ↗

What owning this involves

Cloud saves · The store backs this game's saves up. That cover ends if your account does.From the store listing

Only what the store discloses. Nothing listed here means the store disclosed nothing — not that there is nothing to disclose.

Features

Single-player
Steam Achievements
Steam Cloud
Family Sharing

From the game's Steam store page.

Languages

English
Japanese · full audio
Simplified Chinese
Traditional Chinese
Korean

Steam lists 5 languages, 1 with full audio.

Age rating & content

DEJUS 18 · Nudez Violência Temas sensíveisThe rating board's own rating, as Steam relays it
Some Nudity or Sexual Content · Frequent Violence or Gore · Adult Only Sexual Content · Frequent Nudity or Sexual Content · General Mature ContentSteam's content descriptors, as the developer answered them
All characters that appear in this game are adults. This game contains content that some players may find uncomfortable: Sex Acts, Non-Consensual Sex, Interspecies Sex, Tentacles Please play in an appropriate environment and be considerate of those around you. All content in this game is fictional and intended for adult audiences only. This game does not endorse or encourage non-consensual acts or sexual violence. Please comply with all applicable laws and social standards.The developer's note on the content, from Steam

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About this game

The developer's description, from the game's Steam store page.

*The game will be uncensored. Store images represent early promotional material only.

*Compared to the original release, this version adds Japanese language support, new character artwork, and enhanced H-scenes!

Introduction

"Boo-hoo... Why did I have to be assigned to this?!"

A monastery has mysteriously lost contact with the outside world. Leticia, a rookie nun from the Exorcism Division is tasked to investigate, and she soon discovers that the village has been attacked by monsters. But the deeper she digs, the more bizarre things become... Will Leticia be able to make it home safely?

Features

Control Leticia and use her sacred staff and trusty handgun to purify the bad, naughty monsters.
Goblins, Rafflesia, Orcs, Ghosts, Devils—a total of 9 types of enemies.
Don't get caught, or the monsters will have their way with Leticia!
25 sets of exquisitely crafted, pixelated adult animations (includes 9 full defeat animations). Can be freely enjoyed in the gallery.

Character

Leticia

A rookie nun in the Church. As a member of the Exorcism Division, her job is to fight off evil head-on.

Leticia is a naturally nervous and distrustful individual, but when it comes to executing orders from the Church, she's extremely decisive. Despite her timid personality, she has an uncanny ability to accept even the most bizarre situations.

Veronia Leticia's partner, who provides support when Leticia is out on missions. Veronia is a serious person, but she occasionally lets loose with a few biting jokes. Deep down, she really cares about Leticia.