Running

　I run around Ounyama park with Kengo and Masato. We run in 70 minutes and I run around the park 6 times. Masato run 6 times too and Kengo run 7 times. Kengo is good runner. The distance of this park is approximately 1.8km I guess. So, running around it 6 times means running approximately 10.8km. And I run 10.8km in 70 minutes. Then even if I run at the same pace, it takes 4.5 hours to run 42.195km for me. In reality it is impossible and it takes at least 5 hours to finish full marathon for me. Marathon is very hard sports...(>３<).
　After that, I played mah-jong with Kengo, Hara-chan, Rikita and Jong-hong. Almost all is beginner excluding I and Rikita. So, I taught a rule and basic point about offense and defense of mah-jong. I hope they master this sport.