Kiiko shares a deep childhood bond with both Tenka Kumo and Sousei Abeno, enjoying their company and often mediating between them. Her feelings for Tenka include romantic undertones. His death causes her immense sadness, impacting her duties to the extent that Sousei Abeno prevents her from undertaking assignments. In Donten ni Warau Gaiden, she accompanies Tenka on his journey.

Her dialogue reveals a protective and caring nature towards Tenka, urging him not to bear burdens alone: "…No. I can’t let you go back. You’re not the way you were. Face the truth! Tenka. It’s okay. You have always been shouldering everything alone. You’ve already done enough. Just for once, be good and let others protect you." She also expresses affectionate exasperation, saying "Good heavens! You know you always get your way with me." Her military background and psychological resilience remain consistent aspects of her portrayal.