本当の原因は彼の性格にある。
Sentence Analyzer
English Translation
        The real problem lies in his character.
    
Furigana
Romanji
        Hontō no gen'in wa kare no seikaku ni aru.
    
Words
            
                本当
            
            
                (ほんとう、ほんと)
            
        
        
            truth; reality; actuality; fact; proper; right; correct; official; genuine; authentic; natural; veritable
        
    
            
                の
            
            
                (の)
            
        
        
            indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question
        
    
            
                原因
            
            
                (げんいん)
            
        
        
            cause; origin; source
        
    
            
                は
            
            
                (は)
            
        
        
            topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
        
    
            
                彼
            
            
                (かれ)
            
        
        
            he; him; his; boyfriend
        
    
            
                性格
            
            
                (せいかく)
            
        
        
            character; personality; disposition; nature
        
    
            
                に
            
            
                (に)
            
        
        
            at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although
        
    
            
                有る
            
            
                (ある)
            
        
        
            to be (usu. of inanimate objects); to exist; to live; to have; to be located; to be equipped with; to happen; to come about
        
    Kanji
Readings: ホン、 もと
                        Meanings: book, present, main, origin, true, real, counter for long cylindrical things
                    Readings: トウ、 あ.たる、 あ.たり、 あ.てる、 あ.て、 まさ.に、 まさ.にべし
                        Meanings: hit, right, appropriate, himself
                    Readings: ゲン、 はら
                        Meanings: meadow, original, primitive, field, plain, prairie, tundra, wilderness
                    Readings: イン、 よ.る、 ちな.む
                        Meanings: cause, factor, be associated with, depend on, be limited to
                    Readings: ヒ、 かれ、 かの、 か.の
                        Meanings: he, that, the
                    Readings: セイ、 ショウ、 さが
                        Meanings: sex, gender, nature
                    Readings: カク、 コウ、 キャク、 ゴウ
                        Meanings: status, rank, capacity, character, case (law, grammar)