Worthless at Home, Whiz to the World: Volume 2

After defeating his older sister, Swordmaster Raiza, Noa gains her blessing to live as an adventurer. He continues completing job requests with his party of high-ranked adventurers, but Raiza seems beyond herself with worry. She takes every opportunity to stick her nose into his business, until she eventually ends up joining their party and adventuring with them. As Noa overcomes hardships with his extraordinary strength and quick wit, Raiza’s strict personality softens... Meanwhile, their remaining sisters grow suspicious of Raiza’s late return and send the magician from their ranks, Sage Ciel, out to find Noa and bring him home. The tale of an overpowered rookie adventurer continues in volume 2 with the arrival of the best mage in the world!

[From J-Novel Club]