Keiko Yamaguchi's Links
Keiko was a match arranged for Arc (after years of resistance) by his mother so the family would have a way in with Keiko’s family to do business. Arc feels particularly guilty about going through with the marriage as he knows it was unfair to Keiko who was an innocent bystander caught up in his family’s sinister machinations. He knows she’s a kind soul who deserves better than to be involved with him, though this leads him to being petrified that she’ll revoke his access to their daughter, Yua.