What shall be put in an empty birdcage?
Tragedy strikes a girl named Kanako when her father, the only blood relative she has, is suddenly killed in an accident. While she finds herself lost on what to do after her father's passing, an entrepreneur named Shingyouji Souichi who's apparently her father's old friend comes to her rescue by taking both Kanako and her father's company into his care. However, Kanako slowly becomes aware that her situation might not exactly be ideal and she may in fact have been lead into a 'birdcage' when Souichi tells her to choose one of his two sons to marry - and whoever she chooses will become the heir to his fortune.
Birdcage Marriage (or Torikago no Marriage) is the first production of a new otome game brand called Kalmia 8 and just like the header image says, it will be an R18 game for the PC. As its debut, it has a two page article in this month's B's Log which features an interview with the scenario writer as well as some initial information on premise as well as some of the characters who are:
Fujii Kanako (Name Changeable) is the game's heroine. She's described as a girl who has difficulty expressing her feelings and also has never experienced love before.
Shingyouji Yuuto (The guy on the right) - One of Kanako's two fiance candidates. He's the eldest son who was brought to be the successor and currently works as Souichi's private secretary. He's gentle and kind, however...
Saegusa Shouta (The guy on the left) - Kanako's other fiance candidate as well as her classmate. His real name is Shingyouji Shouta. He may seem scary at a glance but he's actually gentlemanly. Rumors of women always seem to follow him.
Hayama Tsukasa - Kanako's father's former secretary. Although he's usually very capable, he's also a bit of a natural airhead. He earnestly devotes himself to serving Kanako.
Shingyouji Souichi - The head of the Shingyouji group that's one of Japan's leading enterprises. There are rumours that he's cold and ruthless.
Sakuragawa Makoto - Kanako's tall, handsome friend. He's the type of person that's easy to trust and rely on without hesitation.
On the production side . . . Hiyo (Under the Moon, Akazukin to Mayoi no Mori, Trick or Alice, the Sweet Blossom drama CD series, etc.) and Jinnai (one of the writers of Lucky Dog) will be collaborating together as directors on this game, however, the scenario will be written by Ayuba Miori (阿由葉みおり?; the interview says she's written novels before but I can't find her past works) while Nishio Tooru (Akazukin to Mayoi no Mori) is assigned as the artist.
If you'd like to follow the game's progress from the creators, Kalmia8 has a twitter account.