Ironically his died-of-heartbreak mother would probably have wanted him to change his name and make something of himself separate from his old name.

Of course now it seems he'll relive his legacy another way.

Liu Xi, you mean?  Green Kaos energy sounds Chinese.  Lara Night may get a headache too if she's anywhere nearby.

Besides, Chiaki doesn't get headaches.  She just mysteriously shows up during his date with Asil to deliver a threat.  Except unlike the others threat Tom received, he'll clearly see in her eyes that she means it, and she's perfectly willing to kill him if she deems it necessary.

Yes I know Chiaki hasn't actually killed many people.  That's because the threat of it usually suffices.