Rubuta ci gaba don wannan sakin layi - Duk da haka, Seikima-II yana da 'yan tarurruka kaɗan tun lokacin da aka rushe su. Daya a cikin 2005 don bikin cika shekaru 20 da fitowar su da kuma wani a cikin 2010 don bikin cika shekaru 25 da kafuwa, na biyun ya hada da rangadin duniya na farko. A shekara ta 2011, an sake gudanar da rangadin su na duniya kuma ƙungiyar ta shirya waƙoƙin sadaka guda biyu waɗanda suka haɗa da masu fasaha daban-daban don mayar da martani ga girgizar ƙasa da tsunami na Tōhoku
Ka yi haƙuri. Sun gudanar da rangadin shekaru 30 na biyu daga Satumba 2015 zuwa Fabrairu 2016. An shirya Seikima-II don yin yawon shakatawa na shekaru 35 a cikin 2020 sannan kuma a 2021, amma duka an juya su zuwa abubuwan da ke faruwa saboda ci gaba da cutar COVID-19.