This phrase appears to refer to a specific digital experience, possibly an online game or interactive application featuring the character Rikka. Based on the structure of the phrase, “touch it” likely implies user interaction with a digital interface, while “Rikka” specifies the subject or theme of that interaction. “Online” indicates the experience occurs via an internet connection.
The appeal of such an interactive experience likely stems from the popularity of the character Rikka within a particular fanbase or community. The ability to interact directly with a beloved character or intellectual property online can provide a sense of engagement and participation that passive consumption may lack. Historically, the rise of online interactive content has allowed for deeper immersion and personalization than traditional media.