Hitotsubashi University occupies the southern end of Daigaku-dori and is one of Japan's most prestigious national universities, specialising in social sciences, economics, and law. The campus is compact and pleasant to walk through — several of the older buildings date from the Meiji and Taisho eras, in a restrained Western institutional style, and are set among mature woodland that feels genuinely quiet even close to Tokyo.
The university library is open to the public on a self-guided basis and holds an unusually strong collection of foreign-language social science and economics journals, alongside Japanese materials. It is a calm and well-maintained reading environment if you need a few hours off your feet.
The grounds themselves are freely accessible. The best time to visit is in spring, when cherry and plum trees bloom throughout the campus, or in autumn when the woodland turns. The overall atmosphere — serious but relaxed, with students cycling and reading on the grass — captures something of what makes Kunitachi distinctive from most other Tokyo suburbs.