Although the New Year's holiday was quite enjoyable and Mother Jounouchi was very enthusiastic about keeping Chen Yu, he still returned to Tokyo with Hiromi Jounouchi when the holiday was almost over.
"Finally, back home! Nothing beats the comfort of one's own home!" The moment Hiromi Jounouchi got home, she flopped straight onto the couch and let out a satisfied groan.
Despite the journey from Yamagata to Tokyo on the Shinkansen taking less than three hours, and even a direct flight option available, it wasn't physical fatigue that Hiromi Jounouchi felt, but mental exhaustion.
It's like how people generally dread going to work on Mondays and don't feel like working on Fridays; returning to a familiar and comfortable environment after being away from home for a few days naturally brings about a feeling of relaxation.