Here's what rhymes with jigyokai.
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 aquae petrify lanai apply dry try fly rely spy fry ply sly alibi pry tri trie pri pupae terrify typify untie edify sty deify amebae stye vitrify drachmai slier supply reply deny occupy stimuli alkali defy simplify testify verify goodbye purify amplify nullify pacify ratify unify belie decry lullaby amoebae descry dignify mollify overlie ramify bonsai ossify retry spry triply blowfly horrify turfy scurfy barfly prettify gentrify ripply banzais overbuy yuppify identify thereby imply justify nearby whereby clarify comply hereby modify nuclei qualify specify classify signify butterfly certify glorify gratify notify underlie alveoli rectify beautify falsify termini codify crucify liquefy resupply vilify acidify detoxify electrify firefly mystify stratify stultify ultrahigh calcify emulsify reunify stupefy liquify overfly scarify versify declassify mummify shanghai beatify speechify dandify satisfy multiply exemplify intensify diversify fortify magnify samurai standby disqualify indemnify solidify mortify objectify personify demystify dragonfly preoccupy vivify misapply dissatisfy hyperbolae refortify syllabify quantify oversupply reclassify revivify cumuli solemnify oversimplify misidentify transmogrify