[b]Promise of Wizard[/b] (魔法使いの約束, mahoutsukai no yakusoku), or most widely known as [b]Mahoyaku[/b], is a mobile, otome-styled game with no romance created by Coly. In this game, players are tasked to train the wizards from the different countries in order to defend the world from the mysterious chaos brought by the moon. This game was officially released on November 26th, 2019. Other notable games created by Coly are [i][[On Air!]][/i] and [i][[Stand My Heroes]][/i].

h6. Sage
* [[Akira (male) (mahoutsukai no yakusoku)|]]
* [[Akira (female) (mahoutsukai no yakusoku)|]]
h6. Central Country
* [[Arthur Grandwell]]
* [[Oz (mahoutsukai no yakusoku)|]]
* [[Cain Knightley]]
* [[Riquet (mahoutsukai no yakusoku)|]]
h6. Northern Country
* [[Snow (mahoutsukai no yakusoku)|]]
* [[White (mahoutsukai no yakusoku)|]]
* [[Mithra (mahoutsukai no yakusoku)|]]
* [[Owen (mahoutsukai no yakusoku)|]]
* [[Bradley Bain]]
h6. Eastern Country
* [[Faust Lavinia]]
* [[Shino Sherwood]]
* [[Heathcliff Blanchett]]
* [[Nero Turner]]
h6. Western Country
* [[Shylock Bennett]]
* [[Murr Hart]]
* [[Chloe Collins]]
* [[Rustica Ferch]]
h6. Southern Country
* [[Figaro Garcia]]
* [[Lennox Ram]]
* [[Rutile Flores]]
* [[Mitile Flores]]
魔法使いの約束 魔法使的约定 まほやく まほやく_FA mhyk mahoyaku promise_of_wizard まほや腐 まほやくBL