Overview
- The 105th National High School Rugby Tournament opened on December 27 at Hanazono Rugby Stadium in Higashiosaka, Osaka.
- Day two produced 14 first-round winners, with Akita Technical, Japan Aviation Ishikawa, Seiko Gakuin, and Takanabe among those advancing.
- Ritsumeikan Keisho defeated Sendai Ikuei 20–7 to secure its first-ever victory at Hanazono and will face Nagasaki Hokuyodai in the next round.
- North Hokkaido representative Engaru, making a third consecutive nationals appearance, lost 5–74 to Onomichi on opening day and was eliminated.
- Second-round play is set for December 30 when seeded teams join the bracket and Toin Gakuen begins its title defense.