This is actually an alternate ending from Tsubaki’s route, but I decided to make a separate post for it to avoid confusion. If you love Azusa and can’t wait for Brilliant Blue, then this might help.
In order to get the twins’ ending, make sure Azusa is at three hearts or above. High family love is required, so either max out the parameter or bring it to the dark pink area. The twins have a few events that will only appear if you do any family activities other than “雑談 / chat“, so it’d be better if you raise the family love via other commands. If you fulfill the requirements, by the end of the game you should get this ending instead of the main / family ending.
ハッピーエンド？ [ Happy Ending? ]
At the end of April, Tsubaki clings to Azusa and asks the latter to help him practice. He jokingly comments that he doesn’t mind practicing in their rooms — where they can be alone — and he tickles Azusa when the latter says they should just practice here in the living room. Soon they hear Ema laughing beside them, and when she says they get along really well..
Tsubaki: “Of course. ★ Oh, what? Are you jealous? You love me that much~?”
Ema: “N-No I don’t!”
Azusa: “You don’t?”
Ema: “Huh? … Azusa-san?”
Azusa: “Just kidding. Hehe.”
Your inner feelings are leaking through, Azusa. (* ﾟ∀ﾟ)ｱﾊﾊ八八ﾉヽﾉヽﾉヽﾉ ＼ / ＼/ ＼
Azusa then reminds Tsubaki that they have something to tell Ema, and they reveal that they’re going to voice the main characters of a new series in autumn. Their characters are twins, but Azusa will be voicing the older one while Tsubaki voices the younger one. They accepted the offer knowing it will be interesting to switch roles, and they want Ema to listen to their acting.. because she’s the one who pushes their backs to move forward. Ema is really happy to hear that she can help them, and she says she’ll cook festive red rice tonight to celebrate their new series. Upon hearing this, Tsubaki admits that he really loves Ema’s kindness. Before, Tsubaki always thought that Azusa is the only one who can understand him, but it’s different now. As long as he’s got Azusa and Ema by his side, Tsubaki feels that he can do anything. Following Tsubaki’s confession, Azusa also admits that the same goes for him. He never felt passionate about anything — not even towards his job — but right now he wants to do his best for both Tsubaki and Ema because he loves both of them. It doesn’t seem like they can part from each other, because they just love each other that much. (人´∀`)☆゜’・:*
Then suddenly, both Tsubaki and Azusa asks how Ema feel towards them. At first Ema thinks they’re asking her to choose one of them, but then both Tsubaki and Azusa confess that they love Ema and their twin — kissing her cheeks at the same time. Just like how Ema loves both of them, Tsubaki and Azusa can’t choose between her and their twin.. so they decided to just treasure both. (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧ From now on, the three of them will always be together.
Tsubaki: “I love you. Please become ours.”
Azusa: “I love you. We belong to you.”
When they ask for her answer, Ema finally tells Tsubaki and Azusa that she loves them. She can’t think straight anymore as they hug and kiss her at the same time, and the only thing left on her mind is the sweet future which lies ahead for the three of them. Then she entrusts her body to them, and everything fades to black. (*ﾉ∀ﾉ)ｲﾔﾝ
Yay 3P ending with the twins! (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧(ﾉ◕ヮ◕)ﾉ*:･ﾟ✧(ﾉ◕ヮ◕)ﾉ*:･ﾟ✧
Now bring on Brilliant Blue please. I seriously need a massive amount of Azusa to charge my soul with, and this ending alone isn’t enough. In fact, it only makes me crave for more. Having Tsubaki and Azusa blushing at you at the same time should be listed as a crime.