Transfer copyright to the Client(The Artist will NOT exercise her/his moral rights)

Nice to meet you. We apologize for the sudden contact. I am currently working on an R18 game for men, and I would like to request a character illustration (including R18) for standing pictures and stills in the game. (It is assumed that the created game will eventually be sold on a DL site, etc.) First of all, I would like to consult with you about the estimate and schedule. First of all, I will describe the illustration I am thinking of. Assumed illustration/character design to be requested: 1 man, 1 woman ・Standing picture: 2 to 3 facial expression variations for women ・Stills (R18 scene. No background required, characters only) 4 scenes, 3 to 4 variations or more for each. thank you. Nakayaki