Update January 12, 2016
With his new relationship in the spotlight, some fans of Fukase's old girlfriend Kyary Pamyu Pamyu have come out to attack the singer online.
One Twitter user asked Fukase, "but weren't you supposed to look after Kyary?"
To this Fukase responded, "we decided on it together so just leave us alone."
January 10th, 2016
Not only have Sekai No Owari's Fukase and Japanese model-actress Masuwaka Tsubasa confirmed their dating status, but the pair uploaded a picture of themselves with Tsubasa's son as proof.
With the accompanying picture taken during a recent skiing trip, Tsubasa admitted that she hesitated going public, for the sake of her young son.
However, when she realised that her son loved spending time with Fukase, she didn't think there was any reason to keep the affair private.
For his part, Fukase also answered some fan questions on Twitter about his new girlfriend.
When asked, "What do you like about Tsubasa-chan?" he replied, "how she is a very serious-minded person. Like, she cooks breakfast no matter how early in the morning it is, or she gives first priority to her child..."
December 29th, 2015
It’s been reported that Sekai No Owari’s vocalist Fukase and Japanese model-actress Masuwaka Tsubasa are dating.
The pair apparently got together around fall and they have been spotted visiting each other’s homes.
When Masuwaka’s agency was asked for comments, they said that they let Masuwaka “handle her private life.”
Previously Fukase was dating Kyary Pamyu Pamyu but ended their relationship in the summer. Masuwaka ended her 6-year marriage back in 2013. Apparently Fukase and Masuwaka’s son also get along well.
Source: Tokyo Hive
Fukase replied to a fan's tweet that asked, "What do you like about Tsubasa-chan?" He replied, "How she is a very serious-minded person. Like, she cooks breakfast no matter how early in the morning it is, or she gives first priority to her child. I like that kind of attitude very much."