A Late-Start Tamer's Laid-Back Life: Volume 9

The raid boss fight against Andras, the giant bird, is over, but there’s more fun in store just around the corner! It’s time to celebrate the arrival of second wave players with a summer event! Yuto and his monsters—now with Perca joining the crew—are transported to an island packed with exciting summer activities. From shopping in a bustling outdoor bazaar, catching bugs, visiting quaint villages, and relaxing on the beach, to renting a boat to fish and explore the ocean, Yuto is determined to enjoy every second of the event. However, when he pushes past a seemingly impassable area and makes it to a mysterious island filled with terrifying creatures, it may turn out that he’s bitten off more than he can chew...

[From J-Novel Club]