Did some digging: Ocean Network Express (ONE) is a Japanese company founded in 2016. It's a joint venture, with Nippon Yusen Kaisha, Mitsui O.S.K. Lines and “K” Line participating.
One Stork is a member of the "Bird Class", a class of 15 ships with a capacity of 14.000 TEU
wikipedia article about Ocean Network Express and a
wikipedia article about the Bird Class