History
The station opened on 1 April 1929 as Mutsuai Station on Odakyu's new Enoshima Line, named after the village formed from six earlier villages combined under the 1889 municipal-system reforms. Until 1945 only 'direct' (chokutsū) services stopped here; all-station service replaced direct trains in June of that year. A semi-express stop from 1946 and a commuter-express stop from the early 1960s reflect the area's role in Tokyo commuter traffic. The footbridge-style station building and an east-west free passage were completed on 15 April 1995, and the station took its present name on 22 August 1998 at Nihon University's request, which financed the rename.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
When Nihon University asked Odakyu to rename the station, the railway proposed 'Shōnan Nichidai-mae', but locals lobbied to keep the historic 'Mutsuai' name and won the compound 'Mutsuai-Nichidaimae'.