Here's what rhymes with shinkokai.
guy chi quae kai by my high why die lie thy y buy cry sky tie vi hi shy sigh bi bye dye fi hy nigh pi pie thai thigh vie dei ly psi rye ty wir awry hai lye mai muy nai wry cy fy lai luy mei sy tai thei wai phi dry try fly spy fry ply sly pry tri trie pri sty aquae stye slier apply deny imply nearby rely nuclei defy goodbye belie decry untie codify overlie spry amebae turfy lanai scurfy overbuy supply reply thereby occupy stimuli whereby comply hereby modify alkali signify simplify verify glorify notify underlie alibi magnify nullify samurai pupae amoebae descry edify mollify vilify bonsai deify ossify retry vivify blowfly horrify overfly mummify shanghai vitrify drachmai ripply banzais identify satisfy clarify qualify specify classify testify certify gratify purify amplify fortify pacify ratify rectify standby unify falsify lullaby termini terrify typify crucify dignify liquefy mortify ramify acidify firefly mystify triply calcify emulsify misapply petrify stupefy liquify scarify versify barfly gentrify speechify dandify solemnify yuppify justify multiply butterfly exemplify intensify quantify alveoli beautify indemnify solidify oversupply personify resupply detoxify electrify stratify stultify ultrahigh reunify revivify cumuli hyperbolae prettify beatify refortify syllabify diversify disqualify objectify oversimplify demystify dragonfly preoccupy reclassify dissatisfy declassify misidentify transmogrify