Assigned to patrol immediately south of the home islands, she spent 29 days in the area, with most of that time taken up in providing lifeguard services for aircraft strikes. From 22 to 24 March, she was on lifeguard duty to the southeast of the Nanpō Islands. On 25 March, she moved into that chain and, on 28 March she closed the Kyūshū coast off Cape Toi. The next day, lifeguard duty took her on a high speed run south to the Osumi Islands, where sea planes picked up the downed pilots as she arrived. A short while later, however, a third plane circled, then ditched eight miles off. "Sea Dog" picked up the pilot, submerged, and headed back to the Kyūshū coast.