On 31 December 1941 she arrived at Davao, to join the rest of Submarine Squadron 6 (I-121, I-122 and I-123) and their flagship, the 6,600-ton submarine tender Chogei.
Pada tanggal 31 Desember, I-124 tiba di Davao dan bergabung dengan sisa-sisa skuadron kapal selam ke-6 (I-121, I-122 dan I-123 dan kapal perawat kapal selam Chogei (6600 ton)).