Talk:ストリーミングハート (Streaming Heart)/@comment-2601:647:380:698D:BD5F:8312:4C9A:28E4-20180713024426

I think this is about a man, who we'll call Masato. cheating on his girlfriend, who we'll call Saki (I associate that name with horror-tragedies) So, Saki, a girl dissatisfied with society wishing to love someone, meets Masato, and they fall in love. Masato later develops an insane obsession with Saki's best friend Miku, Masato enters a relationship with Miku. while abusing Saki. The song ends with Saki breaking off the relationship due to the reasons above. Another interpretation is that of a human falling in love with a fictional character.