Question: Which Japanese sect is part of Mahayana Buddhism?

Context paragraphs:
Rinzai school: The Rinzai school (臨済宗 ; Japanese: "Rinzai-shū", Chinese: 临济宗 "línjì zōng") is one of three sects of Zen in Japanese Buddhism (with Sōtō and Ōbaku).

Kyōzō: Kyōzō (経蔵 ) in Japanese Buddhist architecture is a repository for sūtras and chronicles of the temple history.  It is also called "kyōko" (経庫 ) , "kyō-dō" (経堂 ) , or "zōden" (蔵殿 ) .  In ancient times the "kyōzō" was placed opposite the belfry on the east–west axis of the temple.  The earliest extant "kyōzō" is at Hōryū-ji, and it is a two-storied structure.  An example of one-storied "kyōzō" is at Tōshōdai-ji in Nara.  A "kyōzō's" usual size is 3 x 3 "ken".  Mahayana Buddhism is one of the sects within Buddhism and one way to create written sutras or sermons.  Unlike Judeo-Christian religions, including Islam, Buddhism does not revere those written words, or sutras, as the Christians, the Muslims, or the Jews do.  The title of this article is Circumambulatory Reading: Revolving Sutra Libraries and Buddhist Scrolls and circumambulation, or walking around while taking it in, is prevalent in Buddhism because the wheel is the international sign of Buddhism.  Revolving sutra libraries were invented in China and were later brought to Japan.  Revolving sutra libraries were created for the same reason, and if a temple visitor revolved that library, they would amass the same esteem as if they had read the entire sutra (Eubanks, 2010).

Zen: Zen () is a school of Mahayana Buddhism that originated in China during the Tang dynasty as Chan Buddhism.  Zen school was strongly influenced by Taoism and developed as a distinct school of Chinese Buddhism.  From China, Chan Buddhism spread south to Vietnam, northeast to Korea and east to Japan, where it became known as Japanese Zen.

Mahayana sutras: The Mahayana sutras are a broad genre of Buddhist scriptures that various traditions of Mahayana Buddhism accept as canonical.  They are largely preserved in the Chinese Buddhist canon, the Tibetan Buddhist canon, and in extant Sanskrit manuscripts.  Around one hundred Mahayana sutras survive in Sanskrit, or in Chinese and Tibetan translations.

Enryaku-ji: Enryaku-ji (延暦寺 , Enryaku-ji ) is a Tendai monastery located on Mount Hiei in Ōtsu, overlooking Kyoto.  It was founded in 807 during the early Heian period (794-1185).  The temple complex was established by Saichō (767–822), also known as Dengyō Daishi, who introduced the Tendai sect of Mahayana Buddhism to Japan from China.  Enryaku-ji is the headquarters of the Tendai sect and one of the most significant monasteries in Japanese history.  As such, it is part of the UNESCO World Heritage Site "Historic Monuments of Ancient Kyoto (Kyoto, Uji and Otsu Cities)".  The founders of Jōdo-shū, Sōtō Zen, and Nichiren Buddhism all spent time at the monastery.  Enryaku-ji is also the center for the practice of kaihōgyō (aka the "marathon monks").

Bodhisattva Precepts: The Bodhisattva Precepts (: "Púsà Jiè" , Japanese: "bosatsukai") are a set of moral codes used in Mahayana Buddhism to advance a practitioner along the path to becoming a Bodhisattva.  Traditionally, monastics observed the basic moral code in Buddhism, the Pratimoksha (such as that of the Dharmaguptaka), but in the Mahayana tradition, monks may observe the Bodhisattva Precepts as well.

Korean Buddhism: Korean Buddhism is distinguished from other forms of Buddhism by its attempt to resolve what it sees as inconsistencies in Mahayana Buddhism.  Early Korean monks believed that the traditions they received from foreign countries were internally inconsistent.  To address this, they developed a new holistic approach to Buddhism.  This approach is characteristic of virtually all major Korean thinkers, and has resulted in a distinct variation of Buddhism, which is called "Tongbulgyo" ("interpenetrated Buddhism"), a form that sought to harmonize all disputes (a principle called "hwajaeng" 和諍) by Korean scholars.  Korean Buddhist thinkers refined their predecessors' ideas into a distinct form.

Tokuitsu: Tokuitsu (徳一 ) (781? -842?)  was a scholar-monk of the Hossō sect of Buddhism in Japan.  He is best known for his debates with other leading Buddhists of the time, Kūkai and Saichō, and for asserting a more orthodox view of Mahayana Buddhism based on the state-sanctioned schools of Nara, Japan.

Nichiren Buddhism: Nichiren Buddhism (Japanese: "Hokke-shū" 法華宗 ) is a branch of Mahayana Buddhism based on the teachings of the 13th century Japanese priest Nichiren (1222–1282) and is one of the so-called "Kamakura Buddhism" schools.  Within Nichiren Buddhism there are two major divisions which fundamentally differ over whether Nichiren should be regarded as a bodhisattva and great teacher or the actual Buddha of a new era.  Several of Japan's New Religious Movements are Nichiren-inspired lay groups.

East Asian Buddhism: East Asian Buddhism is a collective term for the schools of Mahayana Buddhism that developed in the East Asian region and follow the Chinese Buddhist canon.  These include the bodies of Chinese Buddhism, Korean Buddhism, Japanese Buddhism, and Vietnamese Buddhism.  They constitute the numerically largest body of Buddhist traditions in the world, over half of the world's Buddhists.

Supporting paragraphs: Rinzai school Zen
Answer: The Rinzai school